What is the known chromosome count for the Plains zebra (*Equus quagga*)?
Answer
44 chromosomes
The text specifies that different zebra species exhibit variations in chromosome count, providing the Plains zebra (*Equus quagga*) as an example possessing 44 chromosomes. This count is significantly lower than that of the domestic horse (*Equus caballus*), which typically has 64 chromosomes. This disparity in chromosome number—a difference of 20 chromosomes in this specific comparison—is the underlying genetic mechanism that leads to significant reproductive difficulties, most notably sterility, in their hybrid offspring such as the zorse.

Related Questions
To which scientific genus do the zebra, domestic horse, and donkey all belong?What is the known chromosome count for the Plains zebra (*Equus quagga*)?Why is the zorse generally not assigned a formal binomial scientific name?How is the common name 'Zorse' derived according to popular nomenclature rules?What is the typical chromosome count for the domestic horse, *Equus caballus*?What genetic feature primarily causes the zorse offspring to be sterile?Where are the zebra stripes on a zorse most prominently featured physically?What specific detail must an owner typically declare when registering a zorse for management purposes?What evolutionary concept does the creation of a zorse demonstrate in action?What equid hybrid results from the cross between a zebra and a donkey?